@partha,I have tried your new version and it works perfectly! Very quick process on my second hand MacPro 2009 I so easily switched to ersatz of SSD PCI MacPro 2010 W3680 48Gb RAM (3x16Gb) MacOs Sierra 10.12.3 and no bug for the moment. But I actually do not know how to get the log file. Let me know, in such way I can send everything you need.Besides, I do not fully understand what to use about "sub-images" especially... Any link to avoid me looking for a long time?

@allanp,I didn't try your terminal commands as partha put a new version.. Nevrtheless, thank you very much for your help!

@heckflosseThank you very much again. Thanks to you, I can use Pixel Shift now. My update DCUP5 is not stable and awful to work with.

Here's an example of a picture taken with a Pentax K-1 and Leitaxed Leica Apo-Extender-1.4x & Apo-Telyt-R modular 280/2.8 W.O. to make an Apo 400/4. On a tripod at 1/50s & Iso250.Crop is exactly the same but picture shift reflects the Pixel shift process.

edit: Added nr pixel shift files as well. Looks like something went wrong though. Was shooting the sun and there's a black dot in the center of the frame. Why the sun would be black and the sky white when overexposed is a bit of a mystery to me. Perhaps it's expected.

I choose medium nr as the camera has three settings plus an additional nr for long exposures which I also turned on.

Noticed the info about compression at the end of the rawpedia tutorial.

My first thought! Preliminary tests suggests no permanent issues. Shooting 28x4x2 (4 due to pixel shift) images straight into the sun in a very short timespan could be quite exhausting to the gear I imagine... but everything looks good.

Reading comprehension failure as my nr files were shot using below 2s shutterspeed. With the clarifications above I realised that youre after long shutterspeeds which rereading the rawpedia text confirmed.

New nr files can be downloaded from same filebin only did files at 1stop iso intervals if needed I can do intermediates later.

@heckflosse & @partha,The new version with Pixel shift module for MacOs is incompatible with DxO DNG files in contrast to official RawTherapee_OSX_10.9_5.0-r1_gtk3.app release.. I mean I don't use Pixel shift module for non pixel shift files with your PS release but it doesn't work: process shows unworkable results... With official release, everything is fine so I can use DxO PRIME 2016... Best regards.

PS: so, I have two RawTherapee applications, the official one for non Pixel Shift files with I can use Dxo Prime and your non-official one for Pixel Shift files where I can't use DxO prime anyway... It doesn't really bother me actually but just to let you know about it.